/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package sonth.CL;

import sonth.EL.Product;
import sonth.BLL.ProductService;

import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Administrator
 */
public class ProductServlet extends HttpServlet implements IPageMapping {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

        String action = request.getParameter("action");
        if (action.equalsIgnoreCase("searchByName")) {
            String keyword = request.getParameter("txtKeyword");
            request.setAttribute("keyword", keyword);
            List<Product> products = ProductService.getByName(keyword);
            request.setAttribute("products", products);
            request.getRequestDispatcher(VIEW_LIST_PRODUCT)
                    .forward(request, response);
        } else if (action.equalsIgnoreCase("searchByAlphabet")) {
            String range = request.getParameter("range");
            List<Product> products = ProductService.getByAlphabetName(range);
            request.setAttribute("products", products);
            request.getRequestDispatcher(VIEW_LIST_PRODUCT)
                    .forward(request, response);
        } else if (action.equalsIgnoreCase("formAddProduct")) {
            response.sendRedirect(FORM_ADD_PRODUCT);
        } else if (action.equalsIgnoreCase("Add")) {
            String name = request.getParameter("txtName");
            String description = request.getParameter("txtDescription");
            String price = request.getParameter("txtPrice");
            Product product = new Product(name, description,
                    Integer.parseInt(price));
            boolean result = ProductService.add(product);
            if (result) {
                List<Product> products = ProductService.getAll();
                request.setAttribute("products", products);
                request.getRequestDispatcher(VIEW_LIST_PRODUCT)
                        .forward(request, response);
            }
        } else if (action.equalsIgnoreCase("Back")) {
            List<Product> products = ProductService.getAll();
            request.setAttribute("products", products);
            request.getRequestDispatcher(VIEW_LIST_PRODUCT)
                    .forward(request, response);
        }

    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
